<?php
session_start();
require_once './db_conn.php';
header("content-type:text/html;charset=utf-8");
$conn;
$connunt = $_POST['username'];
$password = $_POST['password'];
$connunt = mysql_real_escape_string($username);
$password = mysql_real_escape_string($password);
$password = md5($password);

$sql = "
 select *
 from suer 
 where connunt='$connunt'
 and password='$password';
  ";
$result = $conn->query($sql);
if($result->num_rows>0){
    echo "正确";
}else {
    echo "用户名或密码错误";
}


